Novel FWA formulation used for the papermaking process

摘要

A new fluorescent whitening agent (FWA) formulation containing 0.1%-99.9% fluorescent brightener #351 (FB #351) 4,4″-bis(2-sulfostyryl)biphenyl disodium salt (CAS #27344-41-8) and 0.1%-99.9% fluorescent brightener #71 (FB #71) 4,4′-bis[4-anilino-6-morpholino-1,3,5-triazin-2-yl]amino-2,2′-stilbene disodium salt (CAS #16090-02-1) is used on the wet-end papermaking process and coating papermaking process to increase the brightness of paper.

主权项

1. A fluorescent whitening agent (FWA) formulation used on the wet-end papermaking process for increasing the brightness of the paper, wherein the concentration is 0.01%-1.0% formulation by weight based on the paper.